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Volcano: Mt. St. Helens (DI00324)
Volcano: Mt. St. Helens (DI00364), Photo by Stan Williams
Volcano: Mt. St. Augustine, Alaska (DI00368)
Volcano: Mt. St. Augustine, Alaska (DI00328)
Volcano: Mt. Santiaguito, Guatemala (DI00362), Photo by Richard Cadle
Eruption of Lascar Volcano (DI00867), Photo by Caspar Ammann